Open-source image generation API. Every picture starts blank.

Windpaint is an API for generating images with open-source models, with storage for everything you make. Video and workflows are coming soon.

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Move to paint. Click the paper to throw a picture.Click the paper to throw a picture.Tap the paper to throw a picture.

An unbranded sneaker with no logos frozen mid-air in a burst of colorful paint splashes, teal and coral, high-speed studio photography, white background — Z-Image Turbo · 1024 × 1024 · seed 101 · $0.004

POST /v1/generation/capabilities/image.generate{  "prompt": "An unbranded sneaker with no    logos frozen mid-air in a burst of    colorful paint splashes, teal and coral,    high-speed studio photography, white    background",  "aspect_ratio": "1:1",  "seed": 101}

Each of these started as a sentence.

Real outputs, not retouched, with the prompt and seed that made them. Same seed, same request, same picture. Click a painting to see all of it.

A girl on a bicycle racing a summer thunderstorm across rice fieldsAnime key art preset · Z-Image Turbo · seed 11

Game item icons of six fantasy potion bottles in different colors arranged in a neat grid on a plain dark background, painterly stylized, consistent lighting — Game item icons of six fantasy potion bottles in different colors arranged in a neat grid on a plain dark background, painterly stylized…Z-Image Turbo · seed 42 · 1024 × 1024

Layered papercut art of a mountain valley with a winding river and tiny houses, soft shadows between paper layers, teal and peach paletteZ-Image Turbo · seed 42

Close-up portrait of a young woman with freckles and curly red hair in golden hour backlight, natural expression, film photography lookZ-Image Turbo · seed 42

Street photograph of a narrow Tokyo alley at night in the rain, glowing paper lanterns and neon signs reflected in puddles, a person with a clear umbrella, 35mm lens — Street photograph of a narrow Tokyo alley at night in the rain, glowing paper lanterns and neon signs reflected in puddles, a person with a…Z-Image Turbo · seed 11

A cozy ramen shop on a street cornerIsometric illustration preset · Z-Image Turbo · seed 11 · 1024 × 1024

Wildlife photograph of a red fox curled up in fresh snow, soft falling snowflakes, warm fur against cool blue light, telephoto lensZ-Image Turbo · seed 42

Write a sentence. Get a picture.

Z-Image Turbo makes an image in 8 steps: $0.004 at 1024 px. Ten aspect ratios, up to four images per request, PNG, JPEG or WebP. Presets wrap your prompt in a Windpaint template when you want a house style.

FLUX.2 [klein] 4B is live too, at $0.005 an image. Coming soon: Wan 2.2 image-to-video, Z-Image, Qwen-Image-2512, FLUX.1 [schnell], HiDream-O1-Image, Stable Diffusion XL, Qwen-Image-Edit-2511, Wan 2.2 text-to-video, Wan 2.2 TI2V 5B, LongCat-Video and HunyuanVideo 1.5.

Image generation All models

curl -X POST \  https://api.windpaint.ai/v1/generation/capabilities/image.generate \  -H "Authorization: Bearer $WINDPAINT_API_KEY" \  -H "Content-Type: application/json" \  -H "Prefer: wait=30" \  -d '{    "prompt": "a frosted amber glass perfume bottle",    "preset": "product-shot@1",    "aspect_ratio": "1:1",    "resolution": "1k",    "seed": 42  }'

The frosted amber glass perfume bottle below came from the product-shot preset with seed 42.

Product shot on seamlessA frosted amber glass perfume bottle1:1 · seed 42
Cinematic stillA lighthouse keeper reading by lamplight during a storm16:9 · seed 11
Isometric illustrationA floating island with a windmill and a vegetable garden1:1 · seed 11
Anime key artA young courier flying a small propeller plane over a coastal town2:3 · seed 42
Editorial portraitAn elderly jazz trumpeter in a linen shirt4:5 · seed 42
Flat vector illustrationA fox reading under a tree at night4:3 · seed 42
Overhead food photoA summer peach and burrata salad4:5 · seed 11

A hand-thrown ceramic vase with a glossy coral glaze holding dried pampas grass on a mint green plinth, soft daylight, minimal studio photography — A hand-thrown ceramic vase with a glossy coral glaze holding dried pampas grass on a mint green plinth, soft daylight, minimal studio…Z-Image Turbo · seed 11 · 1024 × 1024

Nothing you make gets lost.

Every upload and output is stored as an asset in your project, with an id. Pass the id straight into the next job instead of downloading and re-uploading. List them, download them, mint a signed URL for an <img> or <video> tag, delete them, or set how long they stay.

id goes straight into the next job
signed URL valid for 15 minutes
7 days of storage free, then 2 credits per GiB per 30 days

# 1. Generate the image and keep its asset id.FRAME_ID=$(curl -s -X POST https://api.windpaint.ai/v1/generation/capabilities/image.generate \  -H "Authorization: Bearer $WINDPAINT_API_KEY" \  -H "Content-Type: application/json" \  -H "Prefer: wait" \  -d '{"prompt": "a paper boat on a rain-soaked street, puddles, evening light",       "aspect_ratio": "16:9", "seed": 11}' | jq -r '.outputs[0].id')# 2. Mint a signed URL for a browser, valid for 15 minutes.curl -s https://api.windpaint.ai/v1/generation/assets/$FRAME_ID/url \  -H "Authorization: Bearer $WINDPAINT_API_KEY"

Assets

One idea in. A still, a clip and a cover out.

Workflows chain generation steps and free processing steps, like resize and extract frame, behind one request. Text to Clip will take an idea and return a cinematic still, a 5 second 480p clip from Wan 2.2 and a cover frame, each saved as an asset, for 4.08 credits ($0.204). It’s coming soon, along with video generation.

Runs are estimated before they start and followed by polling, a signed webhook or an event stream. You only pay for the steps that finish.

Workflows

curl https://api.windpaint.ai/v1/workflows/text-to-clip/runs \  -H "Authorization: Bearer $WINDPAINT_API_KEY" \  -H "Content-Type: application/json" \  -d '{"inputs": {"idea": "a paper boat drifting down a rainy street", "aspect": "9:16"}}'

Until a video model is live, Text to Clip reports available: false.

Still Z-Image Turbo · 1k · 16:9
Clip Wan 2.2, coming soon · 5 s · 480p · preview, illustrative
Cover frame extract frame · free step

Illustrated with a Cinematic still preset output (Z-Image Turbo, seed 42). The moving clip is our own push-in on that still, not a video model output.

Your agent can paint too.

A hosted MCP server gives Claude Code, Cursor, Codex and any MCP client that can send a header 20 tools: catalog, estimate, upload, generate, wait, download and workflows. Agent skills come packaged as a plugin.

# Hosted MCP server (Claude Code shown; any MCP client works)claude mcp add --transport http windpaint https://mcp.windpaint.ai/mcp \  --header "Authorization: Bearer $WINDPAINT_API_KEY"# Or the skills plugin, which adds the server for you.# Inside Claude Code:/plugin marketplace add windpaint-ai/skills/plugin install windpaint@windpaint

Developers

Flat vector illustration of a friendly robot arm painting on a canvas next to a laptop, teal and coral palette, plain mint backgroundZ-Image Turbo · seed 11

Pay for finished work.

Prepaid credits at $0.05 each. You only pay for jobs that complete.

“Three paint swatches in teal, amber and coral side by side on textured paper, overhead studio photograph” · Z-Image Turbo · seed 11

$0.004: an image. Z-Image Turbo at 1024 px.
$0.005: an image. FLUX.2 [klein] 4B at 1024 px.
$0.20: a clip, coming soon. Wan 2.2, 5 seconds at 480p.
200: free credits when your early-access account is approved, valid for 30 days.

We don’t train on your prompts, inputs or outputs. The live models are Apache-2.0, so what you make with them can be used commercially. Prompts and image outputs are moderated, and outputs are kept for 7 days unless you say otherwise.

Pricing Trust

Loose watercolor painting of a canal city with bridges and boats, soft washes of color, visible paper texture, ink linework

Start yours.

Request early access. We’ll email you when your account is approved, with 200 free credits to spend in the first 30 days.

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“Loose watercolor painting of a canal city with bridges and boats, soft washes of color, visible paper texture, ink linework” · Z-Image Turbo · seed 11